Means for operating elevator car and shaft doors



Nov. 17, 192-5 C. NORTON MEANS FOR QPERATING ELEVATOR CAR AND SHAFT DObRS Filed Jan 17. 1925 4 Sheets-Sheet 1 I v w awuwtoz C/i/fard Nor/on New; 17,1925- I c. NORTON mms .FOR..OPERATING ELEVATOR CAR AND SHAFT DOORS Filed Ja nul' 'l, 1925* 4-sm;ets smaet 2 &

anomtot I C/i/foro/ Nor/on c. NORTQN 4 MEANS FOR OPERATING ELEVATOR cm AND SHAFT DOORS Filed Jan; yr, 1925- 4 Sheets-Sheet a 1 m mm 4 0 :m

Nov. 17,1925. I 1,562,184 c. NORTON MEANS FOR-OPERATIYG EILEVATC-JR 05R A'uDYsnAFT DOORS Ipi e J n; w, 1925 4 Sheet-Shee't 4 To all whom it may concern."

be opened.

r l ases no. is 1925;

GLIEEGBB HQRTGN. OF NEW YQBK, N. Y ASSIGNOE TO GEAEAM in NORTQN CQMPAIKY,

()IE NEW YQZEK-K, N. '31, A GKIRPDBATIGN 0F BELAWA' RE.

MEANS FOR QlERATIHG: ELEVATUI? GAR AND SHAFT DOORS.

Application filed lannary n", 1925. semi No. more.

Be it known that I, Curronn Non'ion, evcitlzen of the United Statesnnd s resident of New York; in the county of New York and State of New York have invent od certain new and useful Improvementsin lvieans for Operating Elevator Car nml Shaft Doors,fof which the following is a specification; i 1

My invent-ion relates to means for operat- .lng elevator car gates or .cloors and elevator she'll: doors and" more particularly :0 means wherein provision is male for controlling .the eotion of the operating mechanism of l'JOlJl') b the attendant on the car.

toe usual construction of apparatus for ,this purpose the car door operating mechanism may be brought inso act-ion any position of the elevator wherlier-at or between floors-the usual construction lacing such that the operation or the actnoring means for bringing the-Well door opera-l ing mechanism into action will also, through 'smtnlole direct COHBQClZlOfiS, ell'ect the open 112;; of the car door by its operating macho-- nlsm. The ability to thus open the car door at positions other than the position of the (or opposite ihe lending is an objectionable ficature of prior apparatus which it is the dim of my invention to overcome.

My present invention consists esseniially in operating the car gatc from the car through the inermerliary of mechanism placed and. fixerl'at the ear lending and 'engageable or operable from the ear onl}; when the car is at or near said landing, thereby ,4 confining the opening ofi'slic car gate to ronr'lilfions Where it is safe to. permit it to Preferably intermediate neclr nnism through Whielrthe actuator o the car acts 119011 the cercloor operating mechanism is some part of: she shaft -clocr#%0pcrating or controlling mechanism, the lnlizer nieolmni ern being capable of operation lt'rcm, the car only when she car at or near the landing;

My invention consisizs also. in the special combinations of devices and details of con struction herelnsffier dcseriocfl. 5

ln carrying out my invention it ls cleslrable 'to employ power 'n tnt-ilerl operafiing mechanism for non; the car rloor' and the shalt door. A fiype 0% egmorntns of Fnis clxeracter suitable for the-por mse is do scribed in my prior applications for gnrienr Serial Nos. 650,042 and 650,04 51, both filed on July 71:11, 192?), wherein there is clesc'rioerl door operating mechanism embodying a power controller such as a valve, in one case ofkloors operated in either or both clirections by pneumatie'or other fluid preessurc or other controller of a kind suitable for the particular mol ive power employed...

. In order that the principles of my pres ent invention maybe better understood,-the principal ports of saill door operating 1nechanisms are indicated. in the accompanying drawings Figures 1 ancl 2 an will be briefly described.

Fig. 1 is afragmentary view of an elevalor shaft door and the main portion of one mechanism for operating the same.

Fig, 2 is a fragmentary view of on elevzv tor car guard. door or gets and themnin portion of the mechanism for operating the some. f Fig. 3 is a side elevation of the actuating mechanism mounted ontlle clevsior car and wiapted to act on the operating meclienism of both the elevator sliaftrloor and elevator guard door. c

Fig. 4: is a similar View to Fig. 3 showing said. actoeiing mechanism in the scrueting positiom is a'plen View of Fig ;-i. Referring first to Fig. l the two sections of a'slidlng, collapsible or telescoping door of the shaft opening at lending, are inrlics'tcrl at l, 1. These are operable by means of rho power actuated lever i herring: a, om. fulcrum so 8 end pivotelly connected with a lever 53 pivoted on section 1" and at encl remote from lever '7 p'lvotolly conm teal with a lever or arm 2 hinged at on section.

The usual handle employed on ecces p 1. sory for moving the door in case "Foe power foils 1s E'fifllC-dlC-Efl at 9, the saline being seon ml lo either the member 5 or the mornher 2 Aeisclle to the lever is a rod 10 or toncling from a cross-neon '11 which is connected with o piston. of the power cylinrler 12, the lc er, according to the construein my prior application Serial tion described.

No. fio lfl-l l, coniainmg a spring in which when pneumatic power to open the door. The n on roller? oi power is stored applied so bile when oil tho sure cll'ccts the closing movement. A suit-j able power controller comprising a valve in the case of pneumatic power is indicated at l3, said controller having an operating con- 1 trol rod ll which may he raised or lowered actuator can engage with the bellcrank 15 only when the car is at or near the landing.

The actuator 16 shown consists of the cam plate otusual form adapted to engage and ride against the vertical arm of the bell crank when said actuator issprojected by some device on the car under chntrol of the attendant or otherwise controllable. As an example of the means for projecting and Withdrawing the actuator 16 I- have shown a lever 1.7 pivoted at 18 on asill or' frame of the car and engaging at oneend ,with the cam plate 16 which, in "the projecting operation, is caused to move at its opposite ends on parallel lines by the use of a suitable parallel motion link 19. Said lever 17 is connected at its free end with a chain or cord 20, which passes over a pulley 21 and is attached atits opposite end to, the crank 22 adapted to be turned in a clock-wise direction by the use of magnetic motive power supplied from an electric motor indicated at 23. lVhile the motor is energized the crank is held in the position shown against a stop "24- and the free endof the lcverl'l is drawn in, thus holding the cam plate 16 in position indicated in Fig. 3 so long as lhemotor is energized.

The action of the motor places a spring 95 connected to lever 17 under tension so that, when the power 1s cut oil from the motor, the spring acts'to project the cam plate 16 and thereby operate the lever 15 or place it in position for operating said lever as the car approaches position where its sill is levehwith the sill of the landing floor. Vfhen the cam plate is projected the, well door operating mechanism is thereby caused to open the well door and when saidcam plate is withdrawn the operating meclia' nisin is caused to close the door in obvious fashion.

The principal parts of the cardoor 'or gate'operating mechanism are indicated in Fig. In this instance the gate of skeleton collapsible form is indicated at 26 and its operating arm 27 is linked to a cross-head 28 towhich are secured the twopistons of they two power cylinders 29, 29. Saidcylinders act, as described in my prior application, under the influence of pneumatic pressure memes or other applied power respectively to opcn andclose the gate and their actions are controlled by means of a suitable power con-- trolling valve or dcvipe 30 toapplv pressure to the )lSiOIl of one while relieving pressure on t e piston ofthe-other and vice versa according to the direction of movcment required in the gate.

.Operation of said valve forming a part of said elevator gate operating mechanism is controlled by a suitable valve operating rod or device 31 similar to the rod-14 already referred to in connection with Fig. 1. Dashpots operating to cushion the two movements of the door or of the gate respectively are indicated 216132. 32 in Figs. 1 and 2. The pistons of these dashpots reciprocate towards and. away from the bottom of the dashpots of the cylinders alternately through the action ofthe rocking lever 33 which is operatively connected with the cross-head or with the bar 10 through power actuated pistons, through an extension of the rod 10, in Fig. 1, and through a link "10, F ig. 2, joined to the rock shaft carrying lever 33 in Fig. 2. The actions of these dashpots in co-operation with the-power cylinders in cushioning the movements of the door is more particularly described in my applications above referred to but need not be further dwelt on inasmuch as they do not form a necessary part of my present invention.

In both Figs. 1 and 2 the numeral 34 indicatesthe casing of the electric power controlling switch that operates to shutoff the motive power for the elevator car motor when the door or. the gate,'as the casemay he, is in open position. The actuating member of said switch isproperly connected with 'the mechanism to effect this result, the circuit of the power being restored by reverse movement of the switch when the door or the gate is fully closed. It is impossible to move thecar when said switches are ar-. ranged in series with one another.

The power controlling rod 31 together with other parts ofthe gate operating mechanism are mounted on the car and said rod terminates in suitable means whereby it may be actuated to cause the-gate or d0or on the car'to be opened. or closed according as said rod is lifted or lowered. The 'connectionbctweeu said rod and the valve 30 may consist of the following parts:

indicates a bell crank lever to one arm at 36 allowing lostunotion, witha rod 37- which is joined to the valve/[At 38 isindicatcd a spring which tends'to move the rod.

37 in one d-irection opposite to that in which therod is moved through the lost motiondevice 36 by the vertical rod 31 when the landing and carried by ,a member of the shaft door operating mechanism operable from the car when the same is at the landinf.

6. In apparatus for operating an elei ator car door and an elevator shaft door simultaneously, the combination substantially as described, of poweractnated operating mechanism for both said doors, each said mechanism having a pover controlling memher, an actuating member on the ear adapted to be projected or extended to operate on the power 'eontrolling member forthe shaft door, a second member mounted on the ear and connected with the power oontroh ling rod for the car door operating mechanism and an arm engaging the same when the car is at a landing, said arm being operatively connected with an arm engaged by the first-named member when. projected.

7. In an. elevator shaft door and car door operating apparatus, the combination With two projeotable cam plates on the ear one operatively connected with the car door operating mechanism and the other proj'eeh able to operativeiy engage the shaft door operating mechanism when the ear is at a landing to open the shaft door and ITIQSIUS connected with the latter mechanism adapted to engage the firstmamed cam plate and simultaneously efieot an opening of the ear door. a

8. The combination with an elevator car "door operating mechanism of an actuator therefor fixed at the car landing and coopcrating with said mechanism to efiect the opening of the door and means on the car for operating said actuatorwhen the car is at the landing. I Signed at New York, in the county of New ,Yorkand State of New York, this 15th day of January A. D. 1925. T

CLIFFORD NORTON" 

